linux: Fix generic struct_stat for 64 bit time (BZ# 29657)

The generic Linux struct_stat misses the conditionals to use
bits/struct_stat_time64_helper.h in the __USE_TIME_BITS64 for
architecture that uses __TIMESIZE == 32 (currently csky and nios2).

Since newer ports should not support 32 bit time_t, the generic
implementation should be used as default.

For arm, hppa, and sh a copy of default struct_stat is added,
while for csky and nios a new one based on generic is used, along
with conditionals to use bits/struct_stat_time64_helper.h.

The default struct_stat is also replaced with the generic one.

Checked on aarch64-linux-gnu and arm-linux-gnueabihf.

1 files changed, 135 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h b/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h
new file mode 100644
index 0000000000..f0ee455748
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/csky/bits/struct_stat.h
@@ -0,0 +1,135 @@
+/* Definition for struct stat.  Linux/csky version.
+   Copyright (C) 2020-2022 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library.  If not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#if !defined _SYS_STAT_H && !defined _FCNTL_H
+# error "Never include <bits/struct_stat.h> directly; use <sys/stat.h> instead."
+#endif
+
+#ifndef _BITS_STRUCT_STAT_H
+#define _BITS_STRUCT_STAT_H	1
+
+#include <bits/endian.h>
+#include <bits/wordsize.h>
+
+#if defined __USE_FILE_OFFSET64
+# define __field64(type, type64, name) type64 name
+#elif __WORDSIZE == 64 || defined __INO_T_MATCHES_INO64_T
+# if defined __INO_T_MATCHES_INO64_T && !defined __OFF_T_MATCHES_OFF64_T
+#  error "ino_t and off_t must both be the same type"
+# endif
+# define __field64(type, type64, name) type name
+#elif __BYTE_ORDER == __LITTLE_ENDIAN
+# define __field64(type, type64, name) \
+  type name __attribute__((__aligned__ (__alignof__ (type64)))); int __##name##_pad
+#else
+# define __field64(type, type64, name) \
+  int __##name##_pad __attribute__((__aligned__ (__alignof__ (type64)))); type name
+#endif
+
+struct stat
+  {
+#ifdef __USE_TIME_BITS64
+# include <bits/struct_stat_time64_helper.h>
+#else
+    __dev_t st_dev;		/* Device.  */
+    __field64(__ino_t, __ino64_t, st_ino);  /* File serial number. */
+    __mode_t st_mode;		/* File mode.  */
+    __nlink_t st_nlink;		/* Link count.  */
+    __uid_t st_uid;		/* User ID of the file's owner.	*/
+    __gid_t st_gid;		/* Group ID of the file's group.*/
+    __dev_t st_rdev;		/* Device number, if device.  */
+    __dev_t __pad1;
+    __field64(__off_t, __off64_t, st_size);  /* Size of file, in bytes. */
+    __blksize_t st_blksize;	/* Optimal block size for I/O.  */
+    int __pad2;
+    __field64(__blkcnt_t, __blkcnt64_t, st_blocks);  /* 512-byte blocks */
+# ifdef __USE_XOPEN2K8
+    /* Nanosecond resolution timestamps are stored in a format
+       equivalent to 'struct timespec'.  This is the type used
+       whenever possible but the Unix namespace rules do not allow the
+       identifier 'timespec' to appear in the <sys/stat.h> header.
+       Therefore we have to handle the use of this header in strictly
+       standard-compliant sources special.  */
+    struct timespec st_atim;		/* Time of last access.  */
+    struct timespec st_mtim;		/* Time of last modification.  */
+    struct timespec st_ctim;		/* Time of last status change.  */
+#  define st_atime st_atim.tv_sec	/* Backward compatibility.  */
+#  define st_mtime st_mtim.tv_sec
+#  define st_ctime st_ctim.tv_sec
+# else
+    __time_t st_atime;			/* Time of last access.  */
+    unsigned long int st_atimensec;	/* Nscecs of last access.  */
+    __time_t st_mtime;			/* Time of last modification.  */
+    unsigned long int st_mtimensec;	/* Nsecs of last modification.  */
+    __time_t st_ctime;			/* Time of last status change.  */
+    unsigned long int st_ctimensec;	/* Nsecs of last status change.  */
+# endif
+    int __glibc_reserved[2];
+#endif
+  };
+
+#undef __field64
+
+#ifdef __USE_LARGEFILE64
+struct stat64
+  {
+# ifdef __USE_TIME_BITS64
+#  include <bits/struct_stat_time64_helper.h>
+# else
+    __dev_t st_dev;		/* Device.  */
+    __ino64_t st_ino;		/* File serial number.	*/
+    __mode_t st_mode;		/* File mode.  */
+    __nlink_t st_nlink;		/* Link count.  */
+    __uid_t st_uid;		/* User ID of the file's owner.	*/
+    __gid_t st_gid;		/* Group ID of the file's group.*/
+    __dev_t st_rdev;		/* Device number, if device.  */
+    __dev_t __pad1;
+    __off64_t st_size;		/* Size of file, in bytes.  */
+    __blksize_t st_blksize;	/* Optimal block size for I/O.  */
+    int __pad2;
+    __blkcnt64_t st_blocks;	/* Nr. 512-byte blocks allocated.  */
+#  ifdef __USE_XOPEN2K8
+    /* Nanosecond resolution timestamps are stored in a format
+       equivalent to 'struct timespec'.  This is the type used
+       whenever possible but the Unix namespace rules do not allow the
+       identifier 'timespec' to appear in the <sys/stat.h> header.
+       Therefore we have to handle the use of this header in strictly
+       standard-compliant sources special.  */
+    struct timespec st_atim;		/* Time of last access.  */
+    struct timespec st_mtim;		/* Time of last modification.  */
+    struct timespec st_ctim;		/* Time of last status change.  */
+#  else
+    __time_t st_atime;			/* Time of last access.  */
+    unsigned long int st_atimensec;	/* Nscecs of last access.  */
+    __time_t st_mtime;			/* Time of last modification.  */
+    unsigned long int st_mtimensec;	/* Nsecs of last modification.  */
+    __time_t st_ctime;			/* Time of last status change.  */
+    unsigned long int st_ctimensec;	/* Nsecs of last status change.  */
+#  endif
+    int __glibc_reserved[2];
+# endif
+  };
+#endif
+
+/* Tell code we have these members.  */
+#define	_STATBUF_ST_BLKSIZE
+#define _STATBUF_ST_RDEV
+/* Nanosecond resolution time values are supported.  */
+#define _STATBUF_ST_NSEC
+
+#endif /* _BITS_STRUCT_STAT_H  */